Date: Sun, 21 Sep 2014 06:37:08 +0400 From: Dmitry Marakasov <amdmi3@amdmi3.ru> To: Maxim V FIlimonov <che@bein.link> Cc: freebsd-arm@freebsd.org, freebsd-current@freebsd.org, mav@freebsd.org Subject: Re: FreeBSD-11.0-CURRENT on ARM: performance and load average Message-ID: <20140921023708.GA29778@hades.panopticon> In-Reply-To: <7351653.A2UeEk9AA3@quad> References: <7351653.A2UeEk9AA3@quad>
next in thread | previous in thread | raw e-mail | index | archive | help
* Maxim V FIlimonov (che@bein.link) wrote: > Recently, I encountered a problem with -CURRENT on an ARM board (cubieboard2 > to be precise). The problem was that the load average was above 2. Including > the fact that the board has 2 CPU cores, that's strange. Also, the network > throughput was way too slow: from 3 kilobytes per second earlier to 20..50 > about now. > > Here's a workaround for that: > > sysctl kern.eventtimer.periodic=1 > With that, the network performance increased while LA decreased to a decent > 0.3..0.5. I'm just started to experiment with cubieboard (1) as well. I've also noticed poor network performance at first, however later (without any tuning) it gave out 111 kBps. kern.eventtimer.periodic doesn't seem to affect it. I've also played with clocks a bit, and was able to increase CPU rate 3x by configuring PLL1. I've experienced some instability later (board doesn't always boot from USB, perl build fails), and now I'm checking if reclocking was the cause. -- Dmitry Marakasov . 55B5 0596 FF1E 8D84 5F56 9510 D35A 80DD F9D2 F77D amdmi3@amdmi3.ru ..: jabber: amdmi3@jabber.ru http://www.amdmi3.ru
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20140921023708.GA29778>